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1 /* |
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2 * Copyright (c) 2010 Ixonos Plc. |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of the "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - Initial contribution |
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11 * |
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12 * Contributors: |
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13 * Ixonos Plc |
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14 * |
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15 * Description: |
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16 * Draw filter for Draw UI plugin. |
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17 * |
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18 */ |
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19 |
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20 |
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21 #include <fbs.h> |
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22 #include <bitdev.h> |
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23 #include <e32math.h> |
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24 #include "cfilterdraw.h" |
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25 |
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26 const TInt KDrawBitmapWidth(640); |
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27 const TInt KDrawBitmapHeight(480); |
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28 // --------------------------------------------------------------------------- |
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29 // Create |
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30 // --------------------------------------------------------------------------- |
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31 // |
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32 EXPORT_C TInt CFilterDraw::Create() |
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33 { |
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34 CFilterDraw* ptr = NULL; |
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35 TRAP_IGNORE( ptr = NewL() ); |
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36 return (TInt)((MImageFilter*)ptr); |
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37 } |
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38 |
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39 // --------------------------------------------------------------------------- |
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40 // NewL |
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41 // --------------------------------------------------------------------------- |
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42 // |
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43 CFilterDraw* CFilterDraw::NewL() |
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44 { |
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45 return new( ELeave )CFilterDraw(); |
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46 } |
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47 |
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48 // --------------------------------------------------------------------------- |
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49 // ~CFilterDraw |
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50 // --------------------------------------------------------------------------- |
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51 // |
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52 CFilterDraw::~CFilterDraw() |
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53 { |
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54 delete[] iData; |
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55 iReadyToRender = EFalse; |
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56 // Close all paths |
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57 for( TInt i(0); i<iPaths.Count(); i++ ) |
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58 { |
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59 iPaths[i].Close(); |
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60 } |
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61 iPaths.Close(); |
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62 } |
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63 |
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64 // --------------------------------------------------------------------------- |
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65 // CFilterDraw |
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66 // --------------------------------------------------------------------------- |
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67 // |
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68 CFilterDraw::CFilterDraw():iData(NULL), |
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69 iBitmapSize(KDrawBitmapWidth, KDrawBitmapHeight) |
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70 { |
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71 } |
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72 |
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73 // --------------------------------------------------------------------------- |
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74 // Rect |
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75 // --------------------------------------------------------------------------- |
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76 // |
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77 TRect CFilterDraw::Rect() |
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78 { |
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79 ASSERT(iChild); |
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80 return iChild->Rect(); |
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81 } |
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82 |
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83 // --------------------------------------------------------------------------- |
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84 // Scale |
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85 // --------------------------------------------------------------------------- |
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86 // |
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87 TReal CFilterDraw::Scale() |
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88 { |
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89 ASSERT(iChild); |
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90 return iChild->Scale(); |
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91 } |
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92 |
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93 // --------------------------------------------------------------------------- |
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94 // ViewPortSize |
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95 // --------------------------------------------------------------------------- |
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96 // |
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97 TSize CFilterDraw::ViewPortSize() |
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98 { |
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99 ASSERT(iChild); |
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100 return iChild->ViewPortSize(); |
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101 } |
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102 |
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103 // --------------------------------------------------------------------------- |
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104 // GetBlockL |
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105 // --------------------------------------------------------------------------- |
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106 // |
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107 TBlock* CFilterDraw::GetBlockL( const TRect& aRect ) |
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108 { |
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109 ASSERT(iChild); |
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110 TBlock* pB = iChild->GetBlockL( aRect ); |
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111 if( !pB ) return NULL; |
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112 TUint32* pD = pB->iData; |
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113 |
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114 if( iData && iReadyToRender ) |
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115 { |
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116 // Factor between real and viewed image |
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117 TReal realToViewedFactorWidth; |
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118 TReal realToViewedFactorHeight; |
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119 RealToViewedFactories(realToViewedFactorWidth, realToViewedFactorHeight); |
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120 const TInt width( iBitmapSize.iWidth ); // Data bitmap width |
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121 |
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122 for( TInt y(pB->iRect.iTl.iY); y<pB->iRect.iBr.iY; ++y ) |
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123 { |
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124 TInt realY(y / Scale() + 0.5); |
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125 TInt viewY(realY / realToViewedFactorHeight + 0.5); |
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126 for( TInt x(pB->iRect.iTl.iX); x<pB->iRect.iBr.iX; ++x ) |
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127 { |
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128 TInt realX(x / Scale() + 0.5); |
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129 TInt viewX(realX / realToViewedFactorWidth + 0.5); |
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130 |
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131 TUint32 color = iData[ width*viewY + viewX ]; |
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132 if( (color & 0xff000000) ) |
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133 { |
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134 *pD = color; |
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135 } |
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136 |
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137 *pD++; |
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138 } |
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139 } |
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140 } |
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141 return pB; |
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142 } |
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143 |
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144 // --------------------------------------------------------------------------- |
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145 // SetParent |
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146 // --------------------------------------------------------------------------- |
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147 // |
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148 void CFilterDraw::SetParent( MImageFilter* aParent ) |
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149 { |
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150 ASSERT(aParent); |
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151 iParent = aParent; |
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152 } |
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153 |
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154 // --------------------------------------------------------------------------- |
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155 // SetChild |
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156 // --------------------------------------------------------------------------- |
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157 // |
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158 void CFilterDraw::SetChild( MImageFilter* aChild ) |
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159 { |
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160 ASSERT(aChild); |
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161 iChild = aChild; |
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162 } |
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163 |
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164 // --------------------------------------------------------------------------- |
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165 // CmdL |
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166 // --------------------------------------------------------------------------- |
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167 // |
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168 TInt CFilterDraw::CmdL( const TDesC16& aCmd ) |
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169 { |
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170 ASSERT(iChild); |
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171 TLex lex (aCmd); |
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172 TPoint position(0,0); |
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173 // Factor between real and viewed image |
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174 TReal realToViewedFactorWidth; |
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175 TReal realToViewedFactorHeight; |
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176 RealToViewedFactories(realToViewedFactorWidth, realToViewedFactorHeight); |
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177 |
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178 // Handle parameters |
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179 while( !lex.Eos() ) |
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180 { |
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181 TPtrC token = lex.NextToken(); |
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182 if( token.Compare( _L("x") ) == 0 ) |
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183 { |
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184 iReadyToRender = EFalse; |
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185 TReal relscale = Scale(); |
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186 TInt param = 0; |
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187 lex.Inc (); |
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188 lex.Val (param); |
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189 // Coordinates on data bitmap |
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190 position.iX = (TReal(param) / relscale) / realToViewedFactorWidth + 0.5; |
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191 } |
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192 else if( token.Compare( _L("y") ) == 0 ) |
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193 { |
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194 TReal relscale = Scale(); |
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195 TInt param = 0; |
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196 lex.Inc (); |
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197 lex.Val (param); |
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198 position.iY = (TReal(param) / relscale) / realToViewedFactorHeight + 0.5; |
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199 RDebug::Print(_L("CFilterDraw::CmdL x:%d y:%d Scale:%g Rw:%d Rh:%d Vpw:%d Vph:%d Rtvw:%g Rtvh:%g"), |
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200 position.iX, |
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201 position.iY, |
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202 relscale, |
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203 Rect().Size().iWidth, |
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204 Rect().Size().iHeight, |
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205 ViewPortSize().iWidth, |
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206 ViewPortSize().iHeight, |
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207 realToViewedFactorWidth, |
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208 realToViewedFactorHeight); |
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209 |
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210 if(!iPaths.Count()) |
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211 { |
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212 RDrawPath newPath; |
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213 User::LeaveIfError( newPath.Append(position) ); |
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214 User::LeaveIfError( iPaths.Append( newPath ) ); |
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215 } |
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216 else |
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217 { |
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218 ASSERT(iPaths.Count()); |
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219 RDrawPath& lastPath = iPaths[iPaths.Count()-1]; |
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220 User::LeaveIfError( lastPath.Append(position) ); |
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221 } |
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222 } |
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223 else if( token.Compare( _L("color") ) == 0 ) |
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224 { |
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225 TUint32 color(0); |
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226 lex.Inc(); |
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227 lex.Val( color, EDecimal ); |
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228 TRgb rgb(color); |
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229 TUint32 colorValue = |
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230 ( rgb.Red() << 16 ) + ( rgb.Green() << 8 ) + rgb.Blue(); |
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231 ASSERT( iPaths.Count() ); |
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232 RDrawPath& lastPath = iPaths[iPaths.Count()-1]; |
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233 lastPath.SetColor( TRgb(colorValue) ); |
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234 } |
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235 else if( token.Compare( _L("size") ) == 0 ) |
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236 { |
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237 TInt size(0); |
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238 lex.Inc (); |
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239 lex.Val(size); |
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240 // Scale line size to match bitmap scale |
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241 TInt sizew( (TReal(size) / realToViewedFactorWidth) + 0.5 ); |
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242 TInt sizeh( (TReal(size) / realToViewedFactorHeight) + 0.5 ); |
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243 |
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244 if( !sizew ) |
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245 { |
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246 sizew++; |
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247 } |
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248 if( !sizeh ) |
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249 { |
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250 sizeh++; |
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251 } |
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252 |
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253 if(iPaths.Count()) |
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254 { |
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255 RDrawPath& lastPath = iPaths[iPaths.Count()-1]; |
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256 lastPath.SetSize( TSize(sizew, sizeh) ); |
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257 } |
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258 } |
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259 else if( token.Compare( _L("lastItem") ) == 0 ) |
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260 { |
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261 ASSERT(iPaths.Count()); |
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262 |
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263 RDrawPath& lastPath = iPaths[iPaths.Count()-1]; |
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264 RDebug::Print(_L("CFilterDraw::CmdL lastItem count:%d size:%d r:%d g:%d b:%d"), |
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265 iPaths.Count(), lastPath.Size().iHeight, |
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266 lastPath.Color().Red(), |
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267 lastPath.Color().Green(), |
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268 lastPath.Color().Blue() |
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269 ); |
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270 |
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271 RDrawPath newPath; |
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272 User::LeaveIfError( iPaths.Append( newPath ) ); |
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273 } |
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274 else if( token.Compare( _L("done") ) == 0 ) |
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275 { |
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276 LoadFrameL(); |
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277 iReadyToRender = ETrue; |
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278 } |
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279 } |
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280 |
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281 return KErrNone; |
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282 } |
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283 |
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284 // --------------------------------------------------------------------------- |
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285 // Type |
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286 // --------------------------------------------------------------------------- |
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287 // |
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288 const char* CFilterDraw::Type() |
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289 { |
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290 return "frame"; |
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291 } |
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292 |
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293 // --------------------------------------------------------------------------- |
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294 // LoadFrameL |
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295 // --------------------------------------------------------------------------- |
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296 // |
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297 void CFilterDraw::LoadFrameL() |
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298 { |
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299 RDebug::Print(_L("CFilterDraw::LoadFrameL w:%d h:%d"), |
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300 iBitmapSize.iWidth, |
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301 iBitmapSize.iHeight); |
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302 |
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303 // Create a bitmap big enough to hold the drawed lines |
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304 CFbsBitmap* bitmap = new(ELeave) CFbsBitmap(); |
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305 CleanupStack::PushL( bitmap ); |
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306 User::LeaveIfError( bitmap->Create( iBitmapSize, EColor16MA ) ); |
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307 |
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308 // create mask |
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309 CFbsBitmap* mask = new (ELeave) CFbsBitmap(); |
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310 CleanupStack::PushL( mask ); |
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311 User::LeaveIfError( mask->Create(iBitmapSize,EColor16MA) ); |
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312 |
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313 CFbsBitmapDevice* maskDevice = CFbsBitmapDevice::NewL( mask ); |
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314 CleanupStack::PushL( maskDevice ); |
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315 |
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316 CFbsBitGc * maskContext(NULL); |
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317 User::LeaveIfError( maskDevice->CreateContext(maskContext) ); |
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318 CleanupStack::PushL(maskContext); |
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319 maskContext->SetPenStyle(CGraphicsContext::ESolidPen); |
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320 maskContext->SetBrushStyle(CGraphicsContext::ESolidBrush); |
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321 maskContext->SetBrushColor(KRgbBlack); |
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322 |
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323 // Create bitmap device and context |
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324 CFbsBitmapDevice * bitmapDevice = CFbsBitmapDevice::NewL (bitmap); |
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325 CleanupStack::PushL (bitmapDevice); |
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326 |
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327 // Create bitmap graphics context |
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328 CFbsBitGc * bitmapContext(NULL); |
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329 User::LeaveIfError (bitmapDevice->CreateContext (bitmapContext)); |
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330 CleanupStack::PushL (bitmapContext); |
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331 |
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332 TDisplayMode dmode = bitmap->DisplayMode(); |
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333 |
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334 for(TInt pathNumber(0); pathNumber<iPaths.Count(); pathNumber++) |
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335 { |
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336 RDrawPath path = iPaths[pathNumber]; |
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337 bitmapContext->SetPenStyle (CGraphicsContext::ESolidPen); |
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338 bitmapContext->SetBrushStyle (CGraphicsContext::ESolidBrush); |
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339 bitmapContext->SetPenColor(path.Color()); |
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340 bitmapContext->SetPenSize(path.Size()); |
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341 maskContext->SetPenSize(path.Size()); |
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342 |
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343 RDebug::Print(_L("CFilterDraw::LoadFrameL ps:%dx%d S:%g"), |
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344 path.Size().iWidth, |
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345 path.Size().iHeight, |
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346 Scale()); |
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347 |
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348 CArrayFix<TPoint>* pointArray = NULL; |
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349 RDrawPath2PointArray(path, pointArray); |
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350 bitmapContext->DrawPolyLine( pointArray ); |
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351 maskContext->DrawPolyLine( pointArray ); |
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352 |
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353 delete pointArray; |
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354 } |
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355 |
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356 // Create memory buffer to hold rendered image data |
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357 |
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358 if( !iData ) |
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359 { |
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360 iData = new (ELeave) TUint32 [iBitmapSize.iWidth * iBitmapSize.iHeight]; |
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361 } |
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362 Mem::FillZ(iData, |
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363 iBitmapSize.iWidth * iBitmapSize.iHeight * sizeof (TUint32)); |
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364 |
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365 TBitmapUtil bm (bitmap); |
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366 bm.Begin(TPoint(0,0)); |
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367 TBitmapUtil maskbm (mask); |
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368 maskbm.Begin(TPoint(0,0)); |
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369 TRgb rgb(0); |
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370 // Find drawed lines from bitmap |
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371 for (TInt y(0); y < iBitmapSize.iHeight - 1; y++ ) |
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372 { |
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373 for (TInt x(0); x < iBitmapSize.iWidth - 1; x++ ) |
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374 { |
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375 // Check mask first |
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376 maskbm.SetPos(TPoint(x,y)); |
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377 if( maskbm.GetPixel() == KRgbBlack.Internal() ) |
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378 { |
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379 bm.SetPos(TPoint(x,y)); |
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380 rgb = bm.GetPixel(); |
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381 iData[(iBitmapSize.iWidth*y)+x] = |
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382 ( rgb.Red() << 16 ) + ( rgb.Green() << 8 ) + rgb.Blue() | |
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383 0xff000000; |
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384 } |
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385 } |
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386 } |
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387 bm.End(); |
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388 maskbm.End(); |
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389 // bitmapContext, bitmapDevice, maskContext, maskDevice, mask, bitmap |
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390 CleanupStack::PopAndDestroy(6, bitmap); |
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391 RDebug::Print(_L("CFilterDraw::LoadFrameL - end")); |
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392 } |
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393 |
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394 // --------------------------------------------------------------------------- |
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395 // RDrawPath2PointArray |
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396 // --------------------------------------------------------------------------- |
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397 // |
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398 void CFilterDraw::RDrawPath2PointArray( |
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399 const RDrawPath& aPath, CArrayFix<TPoint>*& aArrayPtr) const |
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400 { |
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401 // if allocation fails just do nothing. +1 if count is zero |
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402 aArrayPtr = new CArrayFixFlat<TPoint> ( aPath.Count() + 1 ); |
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403 if (aArrayPtr) |
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404 { |
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405 for( TInt i(0); i<aPath.Count(); i++ ) |
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406 { |
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407 TPoint item = aPath[i]; |
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408 TRAP_IGNORE( aArrayPtr->AppendL( item ) ); |
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409 } |
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410 } |
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411 } |
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412 |
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413 // --------------------------------------------------------------------------- |
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414 // RealToViewedFactories |
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415 // --------------------------------------------------------------------------- |
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416 // |
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417 void CFilterDraw::RealToViewedFactories(TReal& aWidth, TReal& aHeight) |
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418 { |
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419 // Factor between real and viewed image |
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420 aWidth = TReal(ViewPortSize().iWidth) / |
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421 TReal(iBitmapSize.iWidth); |
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422 aHeight = TReal(ViewPortSize().iHeight) / |
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423 TReal(iBitmapSize.iHeight); |
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424 } |
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425 |